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| 36 | 36 | ||
| 37 | #ifndef KERN_arm32_EXCEPTION_H_ |
37 | #ifndef KERN_arm32_EXCEPTION_H_ |
| 38 | #define KERN_arm32_EXCEPTION_H_ |
38 | #define KERN_arm32_EXCEPTION_H_ |
| 39 | 39 | ||
| 40 | #include <arch/types.h> |
40 | #include <arch/types.h> |
| - | 41 | #include <arch/regutils.h> |
|
| 41 | 42 | ||
| 42 | #define HIGH_EXCEPTION_VECTORS |
43 | #define HIGH_EXCEPTION_VECTORS |
| 43 | 44 | ||
| 44 | #ifdef HIGH_EXCEPTION_VECTORS |
45 | #ifdef HIGH_EXCEPTION_VECTORS |
| 45 | #define EXC_BASE_ADDRESS 0xffff0000 |
46 | #define EXC_BASE_ADDRESS 0xffff0000 |
| Line 89... | Line 90... | ||
| 89 | 90 | ||
| 90 | 91 | ||
| 91 | 92 | ||
| 92 | static inline void istate_set_retaddr(istate_t *istate, uintptr_t retaddr) |
93 | static inline void istate_set_retaddr(istate_t *istate, uintptr_t retaddr) |
| 93 | { |
94 | { |
| 94 | istate->lr = retaddr; |
95 | istate->pc = retaddr; |
| 95 | } |
96 | } |
| 96 | 97 | ||
| 97 | /** Return true if exception happened while in userspace */ |
98 | /** Return true if exception happened while in userspace */ |
| 98 | static inline int istate_from_uspace(istate_t *istate) |
99 | static inline int istate_from_uspace(istate_t *istate) |
| 99 | { |
100 | { |
| 100 | return !(istate->lr & 0x80000000); |
101 | return (istate->spsr & STATUS_REG_MODE_MASK) == USER_MODE; |
| 101 | return 0; |
- | |
| 102 | } |
102 | } |
| 103 | static inline unative_t istate_get_pc(istate_t *istate) |
103 | static inline unative_t istate_get_pc(istate_t *istate) |
| 104 | { |
104 | { |
| 105 | return istate->lr; |
105 | return istate->pc; |
| 106 | } |
106 | } |
| 107 | 107 | ||
| 108 | extern void setup_exception_stacks(void); |
108 | extern void setup_exception_stacks(void); |
| 109 | extern void install_exception_handlers(void); |
109 | extern void install_exception_handlers(void); |
| 110 | extern void exception_init(void); |
110 | extern void exception_init(void); |